Medal, the Royal Medal [of the Royal Society, London], awarded to Joseph John Thomson, 1894. Gold; 73mm diameter, 7mm ht, in maroon leather case, 10.5x10.5x2cm. Weight 294.22g. obverse: Victoria Regina Soc: Reg: Lond: Patrona. MDCCCXXXVIII [1838] ; relief profile Head to L of Queen Victoria, signed W Wyon, R.A. reverse: Reginae Mvnificentia Arbitrio Societatis; relief statue of Isaac Newton, and diagrams. rim legend: Prof. Joseph John Thomson, M.A., F.R.S., 1894